| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 01/11/2012 | CN102318186A Amplifier circuit, integrated circuit and radio frequency communication unit |
| 01/11/2012 | CN102315825A High-linearity push-pull amplifier using space combination technology |
| 01/11/2012 | CN102315824A Power amplifier reducing gain mismatch |
| 01/11/2012 | CN101694962B Loop compensation circuit for switching stabilized-voltage power supply controller |
| 01/11/2012 | CN101656518B Feed-forward power amplification circuit and method for realizing power amplification by using same |
| 01/11/2012 | CN101599741B Frequency compensated operational amplifier |
| 01/11/2012 | CN101227171B Linearisation device with pre-distortion with adjustable amplitude and curve |
| 01/10/2012 | US8093949 Signal pre-distortion facility for amplifier non-linearity compensation |
| 01/10/2012 | US8093944 Line driver capable of automatic adjustment of output impedance |
| 01/10/2012 | CA2579965C Housing apparatus for heat generating device |
| 01/10/2012 | CA2569387C Modified doherty amplifier |
| 01/05/2012 | WO2012003408A1 Predistortion of complex modulated waveform |
| 01/05/2012 | WO2012003113A2 Grounding switch method and apparatus |
| 01/05/2012 | WO2012002407A1 High frequency power amplifier |
| 01/05/2012 | WO2001058026A3 Super-linear multi-carrier power amplifier |
| 01/05/2012 | US20120001694 Adaptive cartesian loop transmitter for broadband and optimal loop stability adjustment |
| 01/05/2012 | US20120001686 High frequency circuit |
| 01/05/2012 | DE19755164B4 Leistungsstufe eines Verstärkers/Senders Output stage of an amplifier / transmitter |
| 01/05/2012 | DE102011001510A1 Leistungsverstärkerlinearisierung mit auslöschungsbasierten Vorwärtskopplungsverfahren und -systemen Power amplifier linearization with extinction based feedforward methods and systems |
| 01/04/2012 | EP2403303A1 Method, device and system for controlling a carrier frequency power amplifier of a base station |
| 01/04/2012 | EP2403136A1 Power amplifier chain implementing a sigma-delta modulator with digital predistortion feedback |
| 01/04/2012 | EP2403135A1 Power amplifier for mobile telecommunications |
| 01/04/2012 | EP2401812A1 Method and apparatus for maintaining circuit stability |
| 01/04/2012 | EP2401811A1 Low dissipation amplifier |
| 01/04/2012 | EP2062350B1 Switch-less bidirectional amplifier |
| 01/04/2012 | EP1999758B1 Offset cancellation for sampled-data circuits |
| 01/04/2012 | CN202103630U Input amplification circuit for power amplification unit of digital television transmitter |
| 01/04/2012 | CN202103628U Intelligent power amplifier module having good heat radiating function |
| 01/04/2012 | CN102308475A Radio-frequency power amplifier |
| 01/04/2012 | CN102308474A 功率放大器和功率放大方法 And a power amplifier amplifying method |
| 01/04/2012 | CN102308473A Method for amplifying a signal by a power amplifier, power amplifier system, device, computer program product, and digital storage medium thereof |
| 01/04/2012 | CN101800515B Output buffer circuit with reinforced turning rate |
| 01/04/2012 | CN101741320B Wide-area high-resolution programmable gain amplifier |
| 01/03/2012 | US8089312 Amplifying circuit with bypass circuit, and electronic device using the same |
| 01/03/2012 | CA2584213C Systems and methods for vector power amplification |
| 12/29/2011 | WO2011161911A1 Amplifier apparatus |
| 12/29/2011 | WO2011161847A1 Power amplifier |
| 12/29/2011 | WO2011161759A1 Semiconductor device |
| 12/29/2011 | US20110316632 Optical communication device |
| 12/29/2011 | US20110316625 Mixed-signal transmission circuit for switching power amplifiers |
| 12/29/2011 | US20110316624 Transformer Structures For A Power Amplifier (PA) |
| 12/29/2011 | US20110316621 Low input bias current chopping switch circuit and method |
| 12/29/2011 | DE10317968B4 Spannungs-Strom-Wandler mit einstellbarem Ruhestrom Voltage-current converter with adjustable bias current |
| 12/29/2011 | DE102011077566A1 LNA-Schaltkreis zum Gebrauch in einem kostengünstigen Receiver-Schaltkreis LNA circuit for use in a low cost receiver circuit |
| 12/29/2011 | DE102005055426B4 Schaltungsanordnung mit einem rückgekoppelten, voll-differentiellen Operationsverstärker Circuit with a feedback, fully-differential operational amplifier |
| 12/28/2011 | EP2400661A2 Power amplification apparatus, OFDM modulation apparatus, wireless transmission apparatus, and distortion reduction method for power amplification apparatus |
| 12/28/2011 | CN202094843U 用于内插模拟扩展技术的模拟信号扩展器 Extended simulation techniques for interpolating analog signal extender |
| 12/28/2011 | CN102301588A 具有两个放大级的运算跨导放大器 Having two amplification stages Operational Transconductance Amplifier |
| 12/28/2011 | CN102301254A 用于稳定放大器的方法和系统 Amplifier used in the process and system stability |
| 12/28/2011 | CN102299689A 基于包络跟踪技术的高效率双频功率放大器的设计方法 Envelope tracking technology, high efficiency power amplifier design method based on dual |
| 12/28/2011 | CN102299687A 维持usb兼容性和掉电保护的同时提高音频放大器性能 Maintain usb compatibility and power-down protection while improving performance audio amplifier |
| 12/28/2011 | CN102299686A 电感电路装置 Inductance circuit device |
| 12/28/2011 | CN102299685A 放大器以及信号放大方法 Amplifiers and signal amplification methods |
| 12/28/2011 | CN101764577B 基于单路反馈和非迭代技术的基带预失真功放线性化方法 Predistortion linearization method based on single-channel amplifier feedback and non-iterative technique baseband |
| 12/28/2011 | CN101741317B 一种数字预失真线性宽带射频功率放大器装置 A digital predistortion linearization broadband RF power amplifier device |
| 12/28/2011 | CN101697477B 调整功放电路输出信号线性度的系统、方法及功放电路 Adjust the output signal linearity amplifier circuit systems, methods and amplifier circuit |
| 12/28/2011 | CN101627534B 包括参考电压电路的信号处理器 Includes a signal processor circuit, a reference voltage |
| 12/28/2011 | CN101601184B 电源电压形成装置及极化调制发送装置 And polar modulation transmission apparatus of the power supply voltage forming apparatus |
| 12/28/2011 | CN101582682B 一种功率放大器和发射机 A power amplifier and transmitter |
| 12/28/2011 | CN101478294B 共源共栅开关功率放大器的系统和方法 Common-source systems and methods common-gate amplifier switch |
| 12/28/2011 | CN101072012B 负载驱动装置及具有该负载驱动装置的电气设备 Load driving device and having an electrical device of the load driving device |
| 12/27/2011 | US8086263 Double transformer balun for maximum power amplifier power |
| 12/22/2011 | WO2011158466A1 High frequency amplifier |
| 12/22/2011 | WO2011158465A1 Modulation power supply circuit |
| 12/22/2011 | WO2011158360A1 Burst-mode transimpedance amplifier |
| 12/22/2011 | US20110309205 Foreign track current suppression system and method |
| 12/21/2011 | CN102291093A Rf功率放大装置及其工作方法 Apparatus and its working methods Rf power amplifier |
| 12/21/2011 | CN102291092A 一种逆f类功率放大器 One kind of inverse f power amplifier |
| 12/21/2011 | CN102291090A 低噪声放大器保护开关 LNA protection switch |
| 12/21/2011 | CN102291089A 一种解决低噪声放大电路自激的方法和放大器 One solution to the low-noise amplifier and amplifier self-excitation method |
| 12/20/2011 | US8081150 Output buffer of a source driver in a liquid crystal display having a high slew rate and a method of controlling the output buffer |
| 12/20/2011 | US8081033 Variable gain amplifier and high-frequency signal receiving apparatus comprising the same |
| 12/20/2011 | US8081029 Distortion compensation apparatus and method for detecting failure in the same |
| 12/20/2011 | US8079277 Apparatus and method for refining subject activity classification for recognition of daily activities, and system for recognizing daily activities using the same |
| 12/15/2011 | WO2011156379A2 Resonator circuit and amplifier circuit |
| 12/15/2011 | US20110304399 Driver amplifier circuit and communication system |
| 12/15/2011 | US20110304395 Power amplifier |
| 12/15/2011 | US20110304392 Amplitude-stabilized odd order pre-distortion circuit |
| 12/15/2011 | US20110304391 Decade bandwidth planar mmic four port transformer |
| 12/15/2011 | US20110304390 Compensation device applied to power amplifier, method for determining pre-distortion of power amplifier, and method for compensating linearity of power amplifier thereof |
| 12/14/2011 | EP2395657A1 High efficiency balanced output amplifier system |
| 12/14/2011 | EP2395656A1 High efficiency audio amplifier system |
| 12/14/2011 | EP2395655A1 Power amplifier and power amplification method |
| 12/14/2011 | CN202076990U 放大信号的电路 Circuit amplifies the signal |
| 12/14/2011 | CN202076989U 射频功率放大器温度补偿电路 RF power amplifier temperature compensation circuit |
| 12/14/2011 | CN1809957B 功率放大装置 Power amplifying means |
| 12/14/2011 | CN1493112B 发射装置 Transmitting device |
| 12/14/2011 | CN102282762A 用于多模收发器的超低噪声高线性度lna Ultra-Low Noise, High Linearity lna for multimode transceivers |
| 12/14/2011 | CN102282761A 高频放大器、无线设备和控制方法 High-frequency amplifier, wireless devices and control methods |
| 12/14/2011 | CN102281036A 一种带自适应控制的驻波比侦测及大功率保护电路 An adaptive control with a standing wave ratio detection and power protection circuit |
| 12/14/2011 | CN102281035A 放大器电路和用于调整检测器元件的输出电流信号的方法 An amplifier circuit and method for adjusting the output current of the detector element signal |
| 12/14/2011 | CN102281034A 功率放大器 PA |
| 12/14/2011 | CN101610071B 前置放大器及其中校准偏移电压的方法 Preamplifier and the offset voltage calibration method |
| 12/14/2011 | CN101379697B 具有数字预失真的功率放大器 Power amplifiers with digital predistortion |
| 12/14/2011 | CN101098125B 具有脉冲检测和偏置控制的rf放大器 Having a pulse detection and bias control rf amplifier |
| 12/13/2011 | US8077758 Signal separation techniques to provide robust spread spectrum signal decoding |
| 12/08/2011 | WO2011152083A1 Transimpedance amplifier, integrated circuit, and system |
| 12/08/2011 | WO2011150703A1 Control method for fast tracking power source, fast tracking power source and system |
| 12/08/2011 | US20110298536 Distortion compensation amplifier |
| 12/08/2011 | CA2767995A1 Transimpedance amplifier, integrated circuit and system |